Electromagnetic regulator for admission-valves of hydrocarbon-motors.



'- Nu. salma. Patented 1an. 2|, |902.

y A. lt:.- KnEBs. ELECTH'OMAGNETIOREGULATOR FOO ADMISSION VALVES F HYDROCAWN MOTORS.

(Application med occ. '29, moo.)

(No Model.) A2 sheets-shut l.

F/G. 2v.

1HE Nonms PETERS ca., PNofuuTuo., wAs'mNcn'oN. uv l:4

Patnted Ian. 2|, |902.

No. Bahasa.

A.vc. umass. 'ELECTRUMAGNETIG REGULATOR FOB ADMISSIN VALVES OF'I'IYDRUGARBUN MOTURS.

(Application iled Oct. 29, 1900.)

2 Sheets-Sheet 2.

(No Model.)

lll/ll l I/Y/INESSfS;

Tm: Nonms Pneus co. PNoTu-Llmo., wxsruNoToN. D. c.

UNITED STATES PATENT CEEICE.A

ARTHUR `COI\IS'I`AI\VI`IN KREBS, OF PARIS, FRANCE, ASSIGNOR TO STE. AME. DES ANCIENS ETABLISSEMENT PANHARD ET. LEVASSOR, OF PARIS,

FRANCE.

ELECTROMAGNETIC REGULATOR FOR ADMlSSlON-VALVES F HYDROCARBON-MOTORS.

SPECIFICATION forming part of `Letters Patent No. 691,638, dated January 21, 190,2. Application filed October 29, 17.900,'. vvSerial No. 34,75 7. (No model.)

To all whom, it' may con/cern:

Be it known that 1, ARTHUR CoNsTANTIN KREBS, engineer, a citizen of the Republic of France, residing in Paris, France, have invented certain new and useful Improvements in Electromagnetic Regulators Acting on the 'Admission-Valves of Hydrocarbon-Motors, of which the following is a specification.

The object of this invention is a system of :o regulation for hydrocarbon-motors which acts by electromagnetically blocking the admission-valves when the motor tends to work too quickly. For this purpose each of the admission-valve rods has a head which when desired I5 can serve asian armature of anelectromagnet arranged in a cap surmounting the valvebox. The electric current is transmitted to the coil of the magnetby means of a centrifugal governor which actuates a contact which zo is connected to one of the terminals of a source of electricity and may make contact successively with one, two, or more springs connected, respectively, with the Vcoils of the electromagnets which determine the closing of the several admission-valves of the motor. It may be understood that when a current is sent to one of these electromagnets its core attracts the magnetic head of the valve-rod and keeps it closed, so that the admission to 3o the corresponding cylinder is stopped.

The annexed drawings show, by way of example, the application of mysystem to a fourcylinder petroleum-motor.

Figures l and 2 are respectively a lateral 3 5 and a longitudinal elevation showing the whole arrangement. Figs. 3, 4f, and 5 are respectively an elevation, partly sectional, a transverse section, and a horizontal section of the mechanism for transmitting the cur- 4o rent to several electromagnets. Finally Fig. 6 shows in vertical section the arrangement of a suction-valve box provided with its stoppiug-electromagnet.

Each ofthe lanterns d contains an admis- @.5 sion-valve b and is surmounted by a cap c, closed by a cover d, which is extended into the interior as a rod e, formingl the core of an electromagnet having yits coil between the core and the wall of the cap c.. Each valverod g has a head h, which closes the magnetic 5o circuit caused by the passage of an electric current through the coilf.

The centrifugal governor i, driven by the shaft j, causes a sleeve k to slide along the shaft, and so vmove a forked lever Z, which embraces the sleeve and is pivoted at m to the framing of the motor. This fork holds between insulating-plates n a metal piece o, connected to one terminal ot' asource of electricity.

The piece o enters an insulating-box p, in which are arranged contact-springs q, each of which is connectedv to the coil of one of the electromagnets of the admission-valves by insulated wires, as shown in Fig. 2.

The face ot the contact-piece ois sloped, as shown in the horizontal section,'Fig. 5, so as to meet the springs q successively, so as to transmit a current first to one of the coils f, then to two of them, then to three, and finally 7o to all four, according as the sleeve k moves along the shaft as the speed of the motor increases.

The operation is readily understood. When the speed of the motor begins to exceed the normal, the piece o is pushed into the box p, making contact with the nearest spring q, transmitting current to the coilof the velectromagnet over the admission-valve of the first cylinder. The core of this magnet re- 8o tains the head h of the valverod,`prevent ing the valve from opening, and so preventing the cylinder from receiving its combustible charge, putting it out of action. It' the speed of the motor still increases, the piece o, making contact with a second spring q, transmits current to the magnet for the second cylinder, holding its admission-valve motionless, and in like manner for the third and fourth cylinders. f

The sensitiveness of the electromagnetic regulator is adjusted by a screw r, having a knurled head, the point of which screw bears against an incline s on the back of the box p, which can turn upon a pivot-pin w, carried 95 by the motor-frame. An opposing spring t, acting on the end of a screw u, urges the incline s constantly against the regulatingscrew o. By turning this screw the box p is more or less inclined, and consequently the distance between the piece o and the contactsprings q is varied.

Having thus described the nature of this invention and the best means I know for carrying the same into practical effect, I claim as my invention- 1. The combination in a motor of an automatic suction admissionvalve, an electromagnct adapted when energized to hold said valve closed, an electric circuit passing through said electromagnet, and a governor' driven by the motor and controlling said circuit to hold said valve closed and thereby stop the supply of combustible to the cylinder, thus retarding the movement of the motor, throwing the cylinder out of action so long as the speed is too great, and permitting it to come again into action when the speed becomes normal.

2. The combination in a motor of a plurality of cylinders, automatic suction admissionvalves therefor, electromagnets adapted when energized to hold said valves closed, electric circuits passing through said electrom aguets, and a governor driven by the motor and controlling said circuits to hold said valves successively closed as the speed of the motor rises, so as to stop the supply of combustible to the corresponding cylinders, thus retarding the movement ofthe motor, throwing the cylinders successively out of action so long as the speed is too great', and permitting them to come again into action when the speed becomes normal.

3. The combination in a motor of a plurality of cylinders, a valve for each of said cylinders, an electric circuit controlling each of said valves, a governor driven by the motor, and a contact operated by said governor to close said valve-controlling circuits'in succession as the speed of the motor rises.

1I. The combination in a motor of a plurality of cylinders, a valve for each of said cylinders, an electromagnet controlling each of said valves, a governor driven by the motor, a terminal operated by said governor and connected to a source of electricity, and separate terminals connected to said electromagnets, said separate terminals being arranged so that said governor-operated terminal makes contact with them successively as the speed ot the motor rises.

5. The combination in a motor of a plurality of cylinders, a valve for each of said cylinders, an electromagnet controlling each of said valves, a governor driven by the motor, a terminal operated by said governor and connected to a source of electricity, and separate terminals connected to said electromagnets, said separate terminals being arranged so that said governor-operated terminal makes contact with them successively as the speed of the motor rises, and means for adjusting said magnet-terminals toward or from said governor-operated terminal.

In Witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

ARTHUR CONS'IANTIN KREBS.

Witnesses:

JULES ARMENGAUD, Jeune, EDWARD P. MACLEAN. 

